Kaicheng Stone Classics

The works recorded are:[1] The classics, with more than 650,000 characters engraved double-sided on 114 stone tablets, are preserved in the Stele Forest Museum in Xi'an, China.

Widely regarded as the world's heaviest books, these tablets are also among the most complete copies of these key documents of Chinese culture to ever have existed.

[3][4][5] Later stone classics are Guangzheng (廣政) (944), Jiayou (嘉祐) (1061) and Taixue (1131).

During the Song dynasty, the Mencius was also recognized as part of the Confucian canon, making thirteen classic works.

The complete set of 190 tablets containing over 630,000 characters is kept in the Beijing Temple of Confucius.